Section II. MANPACK RADIO

TM 115820890203

SECTION II

MANPACK RADIO

2.1.

OPERATIONAL CHECK.

In using the Operational Check, it is important that you perform each step and sub-step exactly as

stated and in the order presented. The Operational Check will tell you what specific action to take

or will direct you to one of the TS Guides. After replacing or repairing the faulty component, you

need to re-run the Operational Check, or at least perform a communication check, to ensure that

the entire radio system under test is in fact then fully operational.

Step 1. PREPARATION

ACTIONS

CHECKS

STEPS

1.1 Set RT:

N/A

FCTN to OFF

N/A

CHAN to 1

N/A

MODE to SC

N/A

RF PWR to HI

N/A

VOL to Mid-Range

N/A

DIM to Full CW

N/A

COMSEC to Z

Ensure HS is

Install known good HS

1.2 Handset, H-250 (HS) :

operational

Connect to RT AUD/DATA

Ensure good

Install known good battery

1.3 Main Battery:

Ensure good power

power

Ensure good HUB

Install known good HUB

1.4 Hold-Up Battery (HUB) :

Ensure good HUB

Step 2. POWER CHECKS

ACTIONS

CHECKS

STEPS

2.1 Set RT FCTN to Z-FH

RT display lights?

YES: Go to Step 2.2

NO:

Replace Battery Box*

RT display then

YES: Go to Step 2.2

lights?

NO:

Replace RT

2.2 Set RT FCTN to OFF, return

RT display reads

YES: Continue

to Z-FH, and observe RT display

GOOD?

NO:

Replace RT

RT HUB lit?

Go to STEP 3

YES.: Replace HUB*

RT HUB still lit?

NO:

Go to STEP 3

YES: Replace RT

After completing a corrective action, continue with next Operational Check step.

2-1